1. Which of the following statements is true about nitrogen:

   	A.	Nitrogen will always have 7 protons
   	B.	Nitrogen has a mass number of 7
   	C.	None are correct
   	D.	Nitrogen will always have 7 electrons
   	E.	Nitrogen has an atomic mass of 7

2. What element is the largest?

   	A.	K
   	B.	Cs
   	C.	Co
   	D.	Br
   	E.	F

1. What element has an electron arrangement of: 2,8,4 ?

   	A.	Si
   	B.	None are correct
   	C.	Ca
   	D.	Ti
   	E.	S

1. If an atom has 5 protons and and 6 neutrons, what is the mass number for that atom?

   	A.	11
   	B.	5
   	C.	none are correct
   	D.	6
   	E.	10.81